LRC
LESHAN RADIO COMPANY,LTD.
3-Terminal 0.5A Positive Voltage Regulator
LR78MXX
Features
•
•
•
•
•
*
Output Current up to 0.5A
Output Voltages of 5, 6, 8, 12, 15, 18, 24V
Thermal Overload Protection
Short Circuit Protection
Output Transistor Safe Operating Area (SOA)Protection
We declare that material of product compliance
with ROHS requirements.
Description
The LR78MXX series of three-terminal
positive regulators are available in the TO-220/D-PAK
package with several fixed output voltages making it useful
in a wide range of applications.
TO-220
GND
1
Order Information
LR78MXXD: D-PAK(TO252)
LR78MXX:
TO-220
D-PAK
GND
1
1. Input 2. GND 3. Output
Internal Block Digram
INPUT
1
SERIES
PASS
ELEMENT
OUTPUT
3
CURRENT
GENERATOR
SOA
PROTECTION
R1
STARTING
CIRCUIT
REFERENCE
VOLTAGE
ERROR
AMPLIFIER
R2
THERMAL
PROTECTION
GND
2
LR78MXX
Ver1.0
1/11
LRC
Absolute Maximum Ratings
Parameter
Input Voltage (for V
O
= 5V to 18V)
(for V
O
= 24V)
Thermal Resistance Junction-Case (Note1)
TO-220 (Tc = +25°C)
Thermal Resistance Junction-Air (Note1, 2)
TO-220 (Ta = +25°C)
D-PAK (Ta = +25°C)
Operating Junction Temperature Range
Storage Temperature Range
Note:
1. Thermal resistance test board
Size: 76.2mm * 114.3mm * 1.6mm(1S0P)
JEDEC standard: JESD51-3, JESD51-7
2. Assume no ambient airflow
LESHAN RADIO COMPANY,LTD.
Symbol
V
I
V
I
R
θJC
R
θJA
T
OPR
T
STG
Value
35
40
2.5
66
92
0 ~ +150
-65 ~ +150
Unit
V
V
°C/W
°C/W
°C
°C
Electrical Characteristics (LR78M05)
(Refer to the test circuits, 0
<
T
J
<
+125°C, I
O
=350mA, V
I
=10V, unless otherwise specified, C
I
= 0.33µF, C
O
=0.1µF)
Parameter
Output Voltage
Symbol
V
O
Conditions
T
J
= +25°C
I
O
= 5mA to 350mA
V
I
= 7V to 20V
I
O
= 200mA
T
J
=+25°C
V
I
= 7V to 25V
V
I
= 8V to 25V
Min.
4.8
4.75
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ.
5
5
-
-
-
-
4.0
-
-
-0.5
40
80
2
300
700
Max.
5.2
5.25
100
50
100
50
6.0
0.5
0.8
-
-
-
-
-
-
mA
V
Unit
Line Regulation (Note3)
Load Regulation (Note3)
Quiescent Current
Quiescent Current Change
∆V
O
∆V
O
I
Q
∆I
Q
∆V/∆T
V
N
RR
V
D
I
SC
I
PK
mV
mV
mA
I
O
= 5mA to 0.5A, T
J
=+25°C
I
O
= 5mA to 200mA, T
J
=+25
°C
T
J
=+25°C
I
O
= 5mA to 350mA
I
O
= 200mA
V
I
= 8V to 25V
I
O
= 5mA
T
J
= 0 to +125°C
f = 10Hz to 100kHz
f = 120Hz, I
O
= 300mA
V
I
= 8V to 18V, T
J
=+25
°C
T
J
=+25°C, I
O
= 500mA
T
J
=+25°C, V
I
= 35V
T
J
=+25°C
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
mV/°C
µ
V/Vo
dB
V
mA
mA
Note:
3. Load and line regulation are specified at constant junction temperature. Change in V
o
due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
LR78MXX
Ver1.0
2/11
LRC
Parameter
Output Voltage
Symbol
V
O
LESHAN RADIO COMPANY,LTD.
Electrical Characteristics (LR78M06)
(Continued)
(Refer to the test circuits, 0
<
T
J
<
+125°C, I
O
=350mA, V
I
=11V, unless otherwise specified, C
I
=0.33µF, C
O
=0.1µF)
Conditions
T
J
= +25°C
I
O
= 5mA to 350mA
V
I
= 8V to 21V
I
O
= 200mA
T
J
= +25°C
V
I
= 8V to 25V
V
I
= 9V to 25V
Min.
5.75
5.7
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ.
6
6
-
-
-
-
4.0
-
-
-0.5
45
80
2
300
700
Max.
6.25
6.3
100
50
120
60
6.0
0.5
0.8
-
-
-
-
-
-
mA
V
Unit
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
∆V
O
∆V
O
I
Q
∆I
Q
∆V/∆T
V
N
RR
V
D
I
SC
I
PK
mV
mV
mA
I
O
= 5mA to 0.5A, T
J
= +25°C
I
O
= 5mA to 200mA, T
J
= +25°C
T
J
= +25°C
I
O
= 5mA to 350mA
I
O
= 200mA
V
I
= 9V to 25V
I
O
= 5mA
T
J
= 0 to +125°C
f = 10Hz to 100kHz
f = 120Hz, I
O
= 300mA
V
I
= 9V to 19V, T
J
=+25
°C
T
J
=+25°C, I
O
= 500mA
T
J
= +25°C, V
I
= 35V
T
J
=+25°C
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
mV/°C
µ
V/Vo
dB
V
mA
mA
Note:
1. Load and line regulation are specified at constant junction temperature. Change in V
o
due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
LR78MXX
Ver1.0
3/11
LRC
Parameter
Output Voltage
Symbol
T
J
=+25°C
V
O
LESHAN RADIO COMPANY,LTD.
Electrical Characteristics (LR78M08)
(Continued)
(Refer to the test circuits, 0
<
T
J
<
+125°C, I
O
=350mA, V
I
=14V, unless otherwise specified, C
I
= 0.33µF, C
O
=0.1µF)
Conditions
I
O
= 5mA to 350mA
V
I
= 10.5V to 23V
I
O
= 200mA
T
J
=+25°C
V
I
= 10.5V to 25V
V
I
= 11V to 25V
Min.
7.7
7.6
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ.
8
8
-
-
-
-
4.0
-
-
−0.5
52
80
2
300
700
Max.
8.3
8.4
100
50
160
80
6.0
0.5
0.8
-
-
-
-
-
-
mA
V
Unit
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
∆V
O
∆V
O
I
Q
∆I
Q
mV
mV
mA
I
O
= 5mA to 0.5A, T
J
=+25°C
I
O
= 5mA to 200mA, T
J
=+25°C
T
J
= +25°C
I
O
= 5mA to 350mA
I
O
= 200mA
V
I
= 10.5V to 25V
I
O
= 5mA
T
J
= 0 to +125°C
f = 10Hz to 100kHz
f = 120Hz, I
O
= 300mA
V
I
= 11.5V to 21.5V, T
J
=+25
°C
T
J
= +25°C, I
O
= 500mA
T
J
= +25°C, V
I
= 35V
T
J
= +25°C
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
RR
V
N
RR
V
D
I
SC
I
PK
mV/°C
µ
V/Vo
dB
V
mA
mA
Note:
1. Load and line regulation are specified at constant junction temperature. Change in V
O
due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
LR78MXX
Ver1.0
4/11
LRC
Parameter
Output Voltage
Symbol
T
J
= +25°C
V
O
LESHAN RADIO COMPANY,LTD.
Electrical Characteristics (LR78M12)
(Continued)
(Refer to the test circuits, 0
<
T
J
<
+125°C, I
O
=350mA, V
I
=19V, unless otherwise specified, C
I
=0.33µF, C
O
=0.1µF)
Conditions
I
O
= 5mA to 350mA
V
I
= 14.5V to 27V
I
O
= 200mA
T
J
= +25°C
V
I
= 14.5V to 30V
V
I
= 16V to 30V
Min.
11.5
11.4
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ.
12
12
-
-
-
-
4.1
-
-
-0.5
75
80
2
300
700
Max.
12.5
12.6
100
50
240
120
6.0
0.5
0.8
-
-
-
-
-
-
mA
V
Unit
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
∆V
O
∆V
O
I
Q
∆I
Q
∆V/∆T
V
N
RR
V
D
I
SC
I
PK
mV
mV
mA
I
O
= 5mA to 0.5A, T
J
= +25°C
I
O
= 5mA to 200mA, T
J
= +25°C
T
J
=+25°C
I
O
= 5mA to 350mA
I
O
= 200mA
V
I
= 14.5V to 30V
I
O
= 5mA
T
J
= 0 to +125°C
f = 10Hz to 100kHz
f = 120Hz, I
O
= 300mA
V
I
= 15V to 25V, T
J
=+25
°C
T
J
=+25°C, I
O
= 500mA
T
J
= +25°C, V
I
= 35V
T
J
= +25°C
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
mV/°C
µ
V/Vo
dB
V
mA
mA
Note:
1. Load and line regulation are specified at constant junction temperature. Change in V
o
due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
LR78MXX
Ver1.0
5/11
京公网安备 11010802033920号
EEWORLD
